diff --git a/prov.sh b/prov.sh
index 713d635..875255e 100644
--- a/prov.sh
+++ b/prov.sh
@@ -32,13 +32,14 @@ function set-mirror-country() {
     MURM="main universe restricted multiverse"
     COUNTRY="$(detect-mirror-country)"
     URL="http://$COUNTRY.archive.ubuntu.com/ubuntu"
+
 cat > /etc/apt/sources.list.new <<EOF
 deb $URL $(lsb_release -cs) $MURM
 deb $URL $(lsb_release -cs)-updates $MURM
 deb $URL $(lsb_release -cs)-backports $MURM
 deb $URL $(lsb_release -cs)-security $MURM
 EOF
-
+    mv /etc/apt/sources.list.new /etc/apt/sources.list
 }
 
 function prov-focal() {